下载后可任意编辑基于 PLC 的小车定位系统设计摘要 企业现代化生产规模的不断扩大和深化，使得仓库成为生产物流系统中的一个重要且不可缺少的环节。立体仓库正以它最小的占地面积和最佳的空间利用率，逐步替代面积利用率极低且陈旧落后的平面仓库，这种替代促使仓储物流业的水平提高。为满足现代化生产与流通的需要，就必须采纳以计算机控制技术为主要手段组成的自动化立体仓库。本设计通过对小车自动控制过程的分析，明确了小车自动控制过程中实现控制过程的工艺要求。设计中以小车为控制对象，采纳德国西门子公司的 S7-300 系列可编程序控制器实现了对小车的定位自动控制。本文首先阐述了 PLC 工作原理与 STEP7 编程语言，并对小车在仓库中的工作过程作以介绍，然后详细描述小车定位自动控制系统的设计过程，包括小车工作时的 PLC程序设计，并附有 PLC 程序梯形图。关键词：S7-300 PLC，小车定位，自动化立体仓库下载后可任意编辑Trolleys Positioning Automatic Control System DesignAbstractModernized production scale enterprises have constantly expanded and deepened, allowing warehouses to become an important production and logistics system indispensable link. It is three-dimensional warehouse to the smallest area and the best utilization of space, space utilization is very low and gradually replace the outdated one-dimensional warehouse, a storage alternative to the logistics industry standards. To meet the needs of modern production and circulation, we must use a computer control technology as a primary means of automated three-dimensional warehouse. This text introduced the small car in brief in the work in the warehouse process, the PLC weaves with STEP7 the distance language, detailed described the PLC procedure design for small car to work, and fish-eye PLC procedure trapezoid diagram.Trolleys automatic control of the design process through the analysis clearly trolleys automate the process of achieving control of processes. Trolleys for the control design to the ta...
